CN107063144A - A kind of acoustic emission monitoring system - Google Patents
A kind of acoustic emission monitoring system Download PDFInfo
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- CN107063144A CN107063144A CN201710488111.5A CN201710488111A CN107063144A CN 107063144 A CN107063144 A CN 107063144A CN 201710488111 A CN201710488111 A CN 201710488111A CN 107063144 A CN107063144 A CN 107063144A
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- probe
- acoustic emission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/04—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
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- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of acoustic emission monitoring system, including acoustic emission sensor and ground handling station, acoustic emission sensor is used to be arranged in the drilling of monitored rock mass, and the transport mechanism that setting position in drilling is sent to by acoustic emission probe, probe installing mechanism and by the installing mechanism for being provided with acoustic emission probe is constituted.Installing mechanism of being popped one's head in acoustic emission monitoring system of the present invention is connected by the plug type between end cap above the cover plate of guidance set second and probe sleeve to be coordinated, solve the problem that acoustic emission sensor is effectively installed and coupled, it is not only convenient for transmitting acoustic emission probe, and the coupling effect of acoustic emission probe and borehole wall is may insure, so as to strengthen the monitoring to rock (body) engineering stability and rock burst dynamic disaster and forecast reliability；Further, it is also possible to realize that multiple acoustic emission probes are combined, with the wider scope of application simultaneously.
Description
Technical field
The invention belongs to the rock in engineering construction (body) project security monitoring technical field, it is related to a kind of acoustic emission monitor(ing)
System.
Background technology
Rock (body) deformation failure in engineering construction, particularly rock burst dynamic disaster, can directly jeopardize the safety of engineering
Build, or even devastating impact can be caused, therefore effectively monitoring is carried out and pre- to rock (body) stability and rock burst dynamic disaster
Report, is one of important content that engineering safety is built.At present, sound emission is used for as a kind of important means of non-destructive monitoring
The monitoring and forecast of rock (body) stability and rock burst dynamic disaster in engineering construction.
In underground engineering wall rock excavates process of construction, in order to enter to the failure and deformation of surrounding rocks and dynamic disaster that are likely to occur
Row Accurate Prediction, be in advance before engineering excavation as the acoustic emission sensor needs of acoustic emission monitoring system important component
The form of three-dimensional spatial distribution is arranged in monitored country rock region, and the number of sensors arranged is more, monitoring effect phase
To more accurate.
In specific implementation, it is necessary to before rock (body) excavation, drilled using rig in stone (body), drilling depth
Increase with engineering buried depth, monitored scope increase；But it is deeper to drill, acoustic emission sensor is installed more difficult.At present, sound is sent out
Sensor mounting means is penetrated mainly including following several：
(1) in engineering site, directly acoustic emission probe is put in the borehole, by the liquid medium remained in drilling (such as
Water) as the medium of signal transmission between rock mass and acoustic emission probe, the detectable signal received is passed through line by acoustic emission probe
Cable is transferred to ground monitoring system；But there is following drawback in this method：1. to be appropriate only for direction downward for this implementation
Drilling, and for fully horizontal or have the drilling of certain angle upwards, do not applied to due to being difficult to medium for storing；Even for
Under drilling, it is still necessary to drilling around rock mass it is relatively complete so that avoid transmission medium from borehole fissure be lost in or ooze out, really
Acoustic emission probe is protected to be in transmission medium all the time, but on-site actual situations are but relatively inaccessible to the requirement, so as to influence monitoring
Effect；Although the couplant that the liquid 2. between rock mass and acoustic emission probe can be transmitted as signal, the density of liquid
General relatively low, its signal transmission effect is believed not as acoustic emission probe and palisades are effectively directly contacted into received detection
Number.
(2) in order to ensure placing efficient coupling between acoustic emission probe and the wall of a borehole in the borehole, may be used also in engineering site
Using the casting cement into drilling, acoustic emission probe and palisades are made to be cast for an entirety, although this method can be solved
Effective transmission problem of detectable signal, but still suffer from following defect：1. the acoustic emission probe after pouring into a mould is not recyclable, causes monitoring
Cost is too high；, can only be again if finding acoustic emission probe no signal or poor signal after 2. pouring into a mould, it is impossible to checked or adjusted
New acoustic emission probe is drilled and installed, it is too high not only result in monitoring cost, and also result in extension project progress, or even delay
Duration；3. cement mortar is injected into drilling, deeper because drilling, the slip casting effect of one side acoustic emission probe installation position is difficult to protect
Barrier, it is possible that acoustic emission probe installation position fails the situation of effective slip casting so that cause acoustic emission probe not with palisades
Efficient coupling and without monitoring signals；On the other hand drilling is deeper, and total contraction distortion amount after the theing cement solidifies of cast is bigger, with water
The signal transmission cable for the acoustic emission probe that mud bonds together can bear pulling force because cement shrinkage is deformed, and causing can not be effective
Transmit signal；4. the explosive in digging process is blown out, and slip casting face may be made to be relaxed with rock wall surface, causes what monitoring signals were transmitted
Validity is reduced；5. generally moister in drilling, cement slurry sets need longer cycle after cast, and the construction time limit can be caused to prolong
It is long；And installation process is time-consuming, laborious, it is necessary to which a series of professional grouting equipments and slip casting personnel, monitor into so as to further increase
This.
(3) it is another to be achieved in that using simple secure mounting arrangements, acoustic emission probe is fixed on inside device, so
Fixing device is delivered to behind installation position with rigid non-movable metallic transmission bar afterwards, acoustic emission probe is ejected with pressure
Contacted afterwards with drilling palisades, realize and fix, its advantage is to realize connecing for acoustic emission probe and palisades in the case of non-slip casting cast
Touch, but still have the following disadvantages：1. this mode due to secure mounting arrangements and the distance between borehole wall it is close, therefore need
Want secure mounting arrangements to be essentially concentric structure with drilling, and need hole wall smooth, but these requirements are difficult to protect in practice of construction
Barrier；2. because secure mounting arrangements size is larger, the drilling being relatively large in diameter is only applicable to, causes drilling cost rise；3. it is whole
Transmission pole and erecting device are to be inserted into by hardness of exerting oneself in drilling in the borehole, and not only frictional force is big, cable of easily grinding away
Or acoustic emission probe, it is also easy to be snapped in drilling, it is impossible to which delivering to needs position to be mounted；4. due to being by secure mounting arrangements
By external force, during its hardness insertion is drilled, therefore installation process not only wastes time and energy, and operating efficiency is extremely low；5. because boring
Hole hole wall is cylindrical surface, and acoustic emission probe end face is plane, how to ensure acoustic emission probe end face effectively and borehole wall
Coupling, is also the problem for needing in practical application to solve.
Based on drawback and defect present in above-mentioned various implementations, cause acoustic emission detection in rock (body) stability
And by a definite limitation during the application of rock burst dynamic disaster monitoring.
Thus, it is how convenient, effectively install acoustic emission probe in the borehole, and have the acoustic emission probe after installation
Effect is coupled with hole wall, is still the difficult point of current field monitoring and research, is lacked relevant test method and technical support.
The content of the invention
The purpose of the present invention is intended to for of the prior art that not enough there is provided a kind of acoustic emission monitoring system, its sound emission
Sensor is not only easy for installation, and acoustic emission probe can realize efficient coupling with borehole wall, it is ensured that acoustic emission probe is detected
The validity of signal, and multiple acoustic emission probe combinations can be realized.
Acoustic emission monitoring system of the present invention, including acoustic emission sensor and ground handling station, the voice sending sensor
Device is used to be arranged in the drilling of monitored rock mass, and the monitoring signals received are passed through into cable transmission to ground handling station, ground
Computer in the work station of face is handled and shown to the monitoring signals from emission sensor, it is characterised in that described
Acoustic emission sensor is sent to drilling by acoustic emission probe, probe installing mechanism and by the installing mechanism for being provided with acoustic emission probe
The transport mechanism composition of interior setting position, the quantity of acoustic emission probe is at least one, and quantity and the sound of installing mechanism of popping one's head in are sent out
The quantity for penetrating probe is identical；The probe installing mechanism includes probe sleeve, end cap, spring spool, spring, guidance set and frame
Shape connector；The probe sleeve is lower end closed, the cylinder of upper end open, between the endoporus and acoustic emission probe of probe sleeve are
Gap coordinates, and the lower surface of probe sleeve is the arc surface matched with the drilling radian of monitored rock mass, and upper end barrel is provided with confession
One or two notch that the cable connector of acoustic emission probe stretches out, if two notches, two notches are relative to probe sleeve
Center line is axisymmetricly distributed；The connector that the end cap is set by the first cover plate and the first cover plate top surface is constituted, the first cover plate
Matched with the shape and size of probe sleeve upper surface, connector is provided with the first via passed through for the first position-limitting pin；Institute
Spring spool is stated for the cylinder of both ends open and lower end is provided with the second position-limitting pin, spring spool quantity is two, two springs
Sleeve is axisymmetricly fixed on probe sleeve outer wall relative to the center line of probe sleeve, and two spring spools center line in water
The line of plane projection is vertical in the projection of horizontal plane with the center line of the notch；The guidance set is by the second cover plate and two
Root guide rod is constituted, and the second cover plate top surface is that the arc surface that is matched with the drilling radian of monitored rock mass, bottom surface are plane, second
Cover plate central position is provided with the centre bore matched with cap connections shape and size, and the hole wall of the centre bore, which is provided with, supplies
The second via that one position-limitting pin is passed through, two guide rods are axisymmetricly fixed on the second lid relative to the center line of the second cover plate
Spacing between plate bottom surface, two guide rod center lines is identical with the spacing between two spring spool center lines；The frame shape
The quantity of connector is one or two, frame shape connector and outer wall set by probe sleeve at notch it is connected and with notch phase
It is logical；Acoustic emission probe is arranged in probe sleeve, and the notch that its cable connector is set from probe sleeve barrel protrudes into frame shape
Connector, the first cover plate of end cap is covered in probe sleeve upper surface and is detachable connection, the spring with probe sleeve
Quantity be two, two springs are respectively charged into two spring spools, its lower end by spring spool lower end install second limit
Position pin is spacing, two guide rods of guidance set respectively with two spring assemblies, the second cover plate of guidance set is sleeved on end
Covering and being connected by the first position-limitting pin with end cap makes spring be in compressive state, transport mechanism and frame shape connector or probe
Sleeve is hinged.
Above-mentioned acoustic emission monitoring system, the quantity of the probe installing mechanism is identical with acoustic emission probe quantity, Ke Yigen
According to being actually needed, multiple acoustic emission probes are arranged along borehole axial in same drilling, the directions of different acoustic emission probes can be with
It is configured according to actual monitoring requirement；Two neighboring acoustic emission sensor is attached by transport mechanism.
Above-mentioned acoustic emission monitoring system, for the ease of installing the second position-limitting pin, the spring spool on spring spool
Diametrically opposite Position Design has the 3rd via that the second position-limitting pin is passed through；Pass through the second limit on spring spool
Position pin not only can play the distance moved down to the spring in spring spool, play position-limiting action；When by spring spool
On the second position-limitting pin when extracting, spring affranchises retracted position, and its elastic acting force disappears, the cover plate of guidance set second
Between probe sleeve and borehole wall no longer be in close contact, particularly when guidance set vertically downward when, guidance set exists
Under its own gravity, slide downwards, its guide rod reenters spring spool, facilitates the use transport mechanism by voice sending sensor
Device easily takes out.
Above-mentioned acoustic emission monitoring system, acoustic emission sensor can pass through rope (such as steel through the first position-limitting pin
Cord) the first position-limitting pin is extracted from the cover plate of guidance set second and cap connections；Equally, acoustic emission sensor also may be used
So that the second position-limitting pin to be extracted from spring spool by the rope (such as steel wire rope) through the second position-limitting pin.
Above-mentioned acoustic emission monitoring system, can be in sound emission in order to further improve acoustic emission probe signal transmission effect
The end face contacted with probe sleeve bottom surface of popping one's head in coats couplant, so that the bottom of acoustic emission probe bottom end face and probe sleeve
Effectively contact；The couplant is butter, vaseline etc..
Above-mentioned acoustic emission monitoring system, for the cable form fit being connected with acoustic emission probe, it is to avoid damage cable, institute
The notch for stating the confession acoustic emission probe cable connector stretching that probe sleeve upper end barrel is set is U-type groove mouthful；The U-type groove mouthful
Width is slightly larger than the diameter of acoustic emission probe cable connector.
Above-mentioned acoustic emission monitoring system, delivers to setting position in drilling by probe installing mechanism for convenience, reduces artificial
The abrasion to cable or installing mechanism of popping one's head in operation difficulty and transmit process caused by frictional force is excessive, it is of the present invention
Transport mechanism is combined by transmission bar assembly and roll wheel assembly；The transmission bar assembly includes the first driven rod, the second transmission
Bar and connecting rod, one end of first driven rod are provided with the first articulated joint, and other end centre is provided with the first connection spiral shell
Hole, one end of second driven rod is provided with the second articulated joint, and other end centre is provided with the first connecting hole and first
It is provided with the first fastening screw on the hole wall of connecting hole, the connecting rod is by the thread segment that is matched with the first connecting screw hole and with
The column body segment composition of one connecting hole matching, the thread segment of connecting rod is threadedly coupled with the first connecting screw hole set by the first driven rod,
The column body segment of connecting rod inserts the first connecting hole set by the second driven rod and fixed by trip bolt；The roll wheel assembly includes
Roller, U-shaped installing plate, wheel shaft and roller sleeve, the quantity of roller is two or three, the quantity of U-shaped installing plate and wheel shaft with
The quantity of roller is identical, and each roller is separately mounted on corresponding wheel shaft, and the two ends of each wheel shaft are separately mounted to corresponding U-shaped peace
On the biside plate for filling plate, each roller is set to be located at respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve is more than
The second fastening screw is designed with the appearance and size and hole wall of first driven rod and the second driven rod, each U-shaped installing plate is solid respectively
On the outer wall for being connected in roller sleeve, when U-shaped installing plate is two, the angle between two U-shaped installing plate center lines is 120 °
~135 °, when U-shaped installing plate is three, the center line of the U-shaped installing plate of two of which is point-blank, remaining next U-shaped
The center line of installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；The roller housing jacket casing of roll wheel assembly is mounted in
Transmit on the second driven rod of bar assembly and fixed by trip bolt.Above-mentioned transport mechanism, probe installing mechanism and first is passed
It is to be articulated and connected to send between bar or the second driven rod, can be avoided in installation process because between sound emission installing mechanism and drilling
The excessive friction of generation, abrasion is produced to sound emission installing mechanism；Further, since the first driven rod is logical with the second driven rod
Connecting rod connection is crossed, and between roller sleeve, the second driven rod and connecting rod is connected by trip bolt；Install and
In unloading process, this connected mode need not rotate the first driven rod and the second driven rod, on the one hand can avoid because of transmission
Bar rotate and make probe installing mechanism and drilling between produce friction, on the other hand can avoid because driven rod rotate cause with
Wind mutually between many ropes of position-limitting pin connection and produce maloperation.
Above-mentioned acoustic emission monitoring system, can be by the first driven rod in order to which probe installing mechanism is delivered into deeper drilling
And/or second driven rod processing length extension, can also transmission bar assembly in increase the 3rd driven rod so that driven rod group
The push length increase of part；One end centre of 3rd driven rod is provided with the second connecting screw hole, other end centre
Provided with the second connecting hole, second connecting screw hole is matched with the thread segment of connecting rod, second connecting hole and connecting rod
Column body segment matches and the 3rd fastening screw is provided with hole wall；The quantity of 3rd driven rod is at least one, and the is located at when using
Between one driven rod and the second driven rod, realized and passed with the first driven rod and the combination of the second connecting rod and the 3rd by connecting rod
Send the combination of bar each other；At least one set roll wheel assembly is can configure on 3rd driven rod.
The operation principle of acoustic emission monitoring system of the present invention：The acoustic emission sensor of the acoustic emission monitoring system is oriented to
Second cover plate of component realizes pluggable connection by the first position-limitting pin and end cap, spring is in compressive state, sound is sent out
Penetrate probe to be locked in probe sleeve, can so meet the probe installing mechanism after assembling perpendicular to the section face of borehole axial
Product is less than drilling sectional area to be installed, so that being provided with the probe installing mechanism of acoustic emission probe can freely move in drilling
It is dynamic；When the probe installing mechanism for being provided with acoustic emission probe to be delivered to the setting position in drilling using transport mechanism, by the
One position-limitting pin is extracted, and under the effect of spring power, guidance set is moved with probe sleeve to opposite both direction, so that
Guidance set and probe sleeve is set to be in close contact respectively with drill hole inner wall, it is ensured that effective coupling of acoustic emission probe and borehole wall
Close, meet the condition of work of acoustic emission probe signal monitoring；After monitoring is finished, by extracting spring spool lower end is installed second
Position-limitting pin, can release the active force to spring, so that the second cover plate and/or probe sleeve and drilling hole of guidance set
Wall is separated, and recycles transport mechanism to withdraw the probe installing mechanism for being provided with acoustic emission probe from monitored rock body drilled,
The recovery and reuse of acoustic emission sensor can be achieved.
Compared with prior art, the invention has the advantages that：
1st, acoustic emission monitoring system of the present invention, the probe installing mechanism that acoustic emission sensor is used, by being oriented to
Plug type connection above the cover plate of component second and probe sleeve between end cap coordinates, and solves acoustic emission sensor and effectively pacifies
Dress and the problem of coupling；When the second cover plate of guidance set is connected by the first position-limitting pin with end cap, in resilient sleeve
Spring is in compressive state；After the first position-limitting pin is extracted, make guidance set second under the effect of spring restoring force
Cover plate top surface and probe sleeve lower surface are in close contact with borehole wall, so as to ensure acoustic emission sensor and borehole wall
Efficient coupling；Acoustic emission sensor by the monitoring signals received by cable transmission to ground handling station, and pass through ground work
The computer for making to stand is shown to monitoring signals.
2nd, acoustic emission monitoring system of the present invention, the second cover plate top surface and probe sleeve that acoustic emission sensor is used
Lower surface is the arc coupling surface being adapted to borehole wall, it is ensured that the coupling effect of acoustic emission probe and borehole wall, so as to increase
The strong monitoring to rock (body) stability and rock burst dynamic disaster and forecast reliability.
3rd, acoustic emission monitoring system of the present invention, after monitoring is finished, by extracting spring spool lower end is installed second
Position-limitting pin, can release the active force to spring, make the cover plate of guidance set second and/or probe sleeve and borehole wall point
From, it is easy to transport mechanism to withdraw acoustic emission sensor from drilling, so that the reuse of acoustic emission sensor is realized, saving
Monitoring cost.
4th, acoustic emission monitoring system of the present invention, due to being provided with the probe installing mechanism transmit process of acoustic emission probe
Middle size is less than bore size, and the driven rod of transport mechanism can be formed by connecting by many, thus not only easy for installation, also not
Influenceed by drilling depth and orientation, with the wider scope of application.
5th, acoustic emission monitoring system of the present invention, by the transport mechanism used is designed with live roller, thus can
The roller transfer in installation process is realized, the friction effects for installing borehole wall in transmit process are overcome, it is ensured that sound emission is passed
The integrality of sensor and transmission cable.
6th, acoustic emission monitoring system of the present invention, by between the probe sleeve and driven rod that are used by the side of being hinged
Formula is connected, and probe sleeve can be made to realize within the specific limits and rotated by a small margin, so as to be further ensured that guidance set second is covered
Plate top surface and probe sleeve lower surface are contacted with borehole wall efficient coupling respectively.
7th, acoustic emission monitoring system of the present invention, with simple in construction, install, convenient disassembly the characteristics of, thus can drop
Low labor intensity, saves a large amount of human costs.
8th, acoustic emission monitoring system of the present invention, can will many by multiple transfer assemblies to meet different demands
Individual probe installing mechanism is connected arranges the purposes of multiple acoustic emission probes to realize in same drilling, sends out each sound
Penetrating probe tip face direction can need to determine respectively according to monitoring, so as to improve to rock (body) stability and rock burst dynamic disaster
Monitoring efficiency.
Brief description of the drawings
Fig. 1 is the structural representation that acoustic emission monitoring system of the present invention includes two acoustic emission probes.
Fig. 2 is the structural representation of probe installing mechanism in acoustic emission monitoring system of the present invention.
Fig. 3 is Fig. 2 A-A sectional views.
Fig. 4 is that the structure of probe sleeve, spring spool and frame shape connector in acoustic emission monitoring system of the present invention is shown
It is intended to.
Fig. 5 is the front view of end cap in acoustic emission monitoring system of the present invention.
Fig. 6 is Fig. 5 upward view.
Fig. 7 is the structural representation of guidance set in acoustic emission monitoring system of the present invention.
Fig. 8 is the structural representation of position-limitting pin in acoustic emission monitoring system of the present invention.
Fig. 9 is the structural representation of acoustic emission probe in acoustic emission monitoring system of the present invention.
Figure 10 is Fig. 9 top view.
Figure 11 is the structural representation of the first driven rod in acoustic emission monitoring system of the present invention.
Figure 12 is the structural representation of the second driven rod in acoustic emission monitoring system of the present invention.
Figure 13 is the structural representation of connecting rod in acoustic emission monitoring system of the present invention.
Figure 14 is the structural representation of the 3rd driven rod in acoustic emission monitoring system of the present invention.
Figure 15 is the structural representation of roll wheel assembly in acoustic emission monitoring system of the present invention.
State diagram Figure 16 is is provided with the probe installing mechanism of acoustic emission probe in installation in the present invention when.
State diagram Figure 17 is is provided with the probe installing mechanism of acoustic emission probe in monitoring in the present invention when.
State diagram Figure 18 is is provided with the probe installing mechanism of acoustic emission probe in recovery in the present invention when.
Figure 19 is the structural representation that acoustic emission monitoring system of the present invention includes three acoustic emission probes.
In figure：1 probe installing mechanism, 1-1 probe sleeves, 1-1-1 notches, 1-2 end caps, the cover plates of 1-2-1 first, 1-2-2
Connector, the vias of 1-2-3 first, 1-2-4 screwed holes, 1-3 spring spools, the vias of 1-3-1 the 3rd, 1-4 springs, 1-5 guiding groups
Part, the cover plates of 1-5-1 second, 1-5-2 guide rods, the vias of 1-5-3 second, the position-limitting pins of 1-6 first, the vias of 1-6-1 the 4th, 1-7
Frame shape connector, the articulated joints of 1-7-1 the 3rd, the position-limitting pins of 1-8 second, the vias of 1-8-1 the 5th, 2 acoustic emission probes, 2-1 lines
Cable joint, 3 transport mechanisms, 3-1 transmission bar assemblies, the driven rods of 3-1-1 first, the connecting screw holes of 3-1-1-1 first, 3-1-1-2 the
One articulated joint, the driven rods of 3-1-2 second, the connecting holes of 3-1-2-1 first, the articulated joints of 3-1-2-2 second, 3-1-2-3 first
Fasten screw, 3-1-3, connecting rod, 3-1-3-1 thread segments, 3-1-3-2 column body segments, the driven rods of 3-1-4 the 3rd, 3-1-4-1 second
Connecting screw hole, the connecting holes of 3-1-4-2 second, the fastening screws of 3-1-4-3 the 3rd, 3-2 roll wheel assemblies, 3-2-1 rollers, 3-2-2U types
Installing plate, 3-2-3 wheel shafts, 3-2-4 roller sleeves, the fastening screws of 3-2-4-1 second, 4 ground handling stations, 4-1 computers, 5 lines
Cable, 6 drillings, 7 rock mass.
Embodiment
By the following examples and with reference to accompanying drawing the technical scheme of acoustic emission monitoring system of the present invention is carried out it is clear,
Complete description, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are resulting on the premise of creative work is not made to be owned
Other embodiments, belong to the scope that the present invention is protected.
Embodiment 1
The acoustic emission monitoring system that the present embodiment is provided as shown in figure 1, including acoustic emission sensor and ground handling station 4,
Acoustic emission sensor is used to be arranged in the drilling 6 of monitored rock mass 7, by the monitoring signals received by cable 5 transmit to
Computer 4-1 in ground handling station 4, ground handling station is handled and shown to the monitoring signals from emission sensor
Show；Acoustic emission sensor is transmitted by acoustic emission probe 2, probe installing mechanism and by the installing mechanism for being provided with acoustic emission probe
The transport mechanism 3 of setting position is constituted in drilling；The quantity of probe installing mechanism 1 and acoustic emission probe 2 is two.
As shown in Figure 9, Figure 10, above-mentioned acoustic emission probe 2 is cylindrical structural, and extend sideways out cable connector 2-1, sound hair
Penetrate 2 end faces of probe and be coated with butter.
As shown in Figure 2 and Figure 3, above-mentioned probe installing mechanism 1 includes probe sleeve 1-1, end cap 1-2, spring spool 1-3, bullet
Spring 1-4, guidance set 1-5 and frame shape connector 1-7；Spring 1-4 quantity is two.
As shown in Figure 2, Figure 3, Figure 4, above-mentioned probe sleeve 1-1 be lower end closed, the cylinder of upper end open, probe sleeve
Endoporus coordinates with acoustic emission probe 2 for gap, and probe sleeve 1-1 lower surface is what is matched with the drilling radian of monitored rock mass
Arc surface, upper end barrel is provided with the two U-type grooves mouthful 1-1-1 stretched out for the cable connector of acoustic emission probe, two U-type grooves mouthful
Center lines of the 1-1-1 relative to probe sleeve 1-1 is axisymmetricly distributed, and U-type groove mouthful 1-1-1 width is more than and acoustic emission probe
The cable diameter of 2 connections.
As shown in Figure 5, Figure 6, above-mentioned end cap 1-2 welds connected connection by the first cover plate 1-2-1 and the first cover plate top surface
Part 1-2-2 is constituted；First cover plate 1-2-1 is square, and it matches with probe sleeve 1-1 upper surfaces shape and size, four
Screwed hole 1-2-4 is provided with angle；Connector 1-2-2 is provided with the first via 1-2-3 passed through for the first position-limitting pin 1-6.
As shown in Figure 2, Figure 3, Figure 4, above-mentioned spring spool 1-3 is the cylinder of both ends open and lower end is provided with through thereon
3rd via 1-3-1 the second position-limitting pin 1-8, spring spool 1-3 quantity are two, and two spring spools are relative to probe sleeve
Center line axisymmetricly weld and be connected in probe sleeve outer wall, and the line that is projected in horizontal plane of center line of two spring spools
Vertical in the projection of horizontal plane with the U-type groove mouthful 1-1-1 center line, two spring spool lower ends are disposed radially the second latch
Hole 1-3-1.
As shown in Fig. 2, Fig. 3 and Fig. 7, above-mentioned guidance set 1-5 is by the second cover plate 1-5-1 and two guide rod 1-5-2 structures
It is that the arc surface that is matched with the drilling radian of monitored rock mass, bottom surface are plane, the second cover plate into, the second cover plate 1-5-1 top surfaces
1-5-1 centres are provided with the centre bore matched with cap connections 1-2-2 shape and size, and the hole wall of the centre bore is set
There is the second via 1-5-3 passed through for the first position-limitting pin 1-6, two guide rod 1-5-2 are relative in the second cover plate 1-5-1
Heart line is axisymmetricly weldingly fixed on spacing and two spring spool 1- between the second cover plate bottom surface, two guide rod center lines
Spacing between 3 center lines is identical.
As shown in figure 4, above-mentioned frame shape connector 1-7 quantity is two, frame shape connector 1-7 and U set by probe sleeve
The outer wall welding at type groove mouthful 1-1-1 places is connected, and is communicated with U-type groove mouth 1-1-1, so as to which cable connector is covered, it is to avoid its with
Frequently contacted between borehole wall and produce abrasion；The with through hole the 3rd is provided with the outside of the frame shape connector 1-7 to be hinged
Joint 1-7-1.
Above-mentioned first position-limitting pin 1-6 and the second position-limitting pin are to have through the 4th via 1-6-1, the 5th via 1-8-
1, the steel wire rope that control position-limitting pin is extracted.
The assembling mode of above-mentioned probe installing mechanism 1 and acoustic emission probe 2 is：Acoustic emission probe 2 is arranged on probe sleeve
In 1-1, it scribbles one end of butter and contacted with the bottom of probe sleeve, and its cable connector 2-1 is set from probe sleeve barrel
Notch 1-1-1 protrudes into frame shape connector 1-7, and the first cover plate 1-2-1 of end cap is covered in probe sleeve 1-1 upper surfaces and passed through
Screw realization through end cap screwed hole 1-2-4 is connected, and two spring 1-4 are respectively charged into two spring spool 1-3, its lower end
Spacing by the second position-limitting pin 1-8, two guide rod 1-5-2 of guidance set are combined with two spring 1-4 respectively, by two bands
5th via 1-8-1 pin 1-8 insertion spring spool 1-3, and the guide rod 1-5-2 for being socketed with spring 1-4 is penetrated into spring
In sleeve 1-3, the second cover plate 1-5-1 of guidance set is sleeved on end cap 1-2 and by first with the 4th via 1-6-1
Position-limitting pin 1-6 is connected with end cap 1-2 makes spring 1-4 be in compressive state；Now, acoustic emission probe 2 is fixed on probe sheath
In cylinder 1-1, the probe installing mechanism 1 after assembling is less than 6 sectional areas of drilling perpendicular to the sectional area of borehole axial.
As shown in Fig. 1, Figure 11 to Figure 15, above-mentioned transport mechanism 3 combined by transmission bar assembly 3-1 and roll wheel assembly 3-2 and
Into；Transmitting bar assembly 3-1 includes the first driven rod 3-1-1, the second driven rod 3-1-2, the 3rd driven rod 3-1-4 and connecting rod 3-
1-3；First driven rod 3-1-1 one end is provided with the first articulated joint 3-1-1-2, and other end centre is provided with the first connection spiral shell
Hole 3-1-1-1；Second driven rod 3-1-2 one end is provided with the second articulated joint 3-1-2-2, and other end centre is provided with the
The first fastening screw 3-1-2-3 is provided with one connecting hole 3-1-2-1 and the hole wall of the first connecting hole；3rd driven rod 3-1-4
One end centre be provided with the second connecting screw hole 3-1-4-1, other end centre is provided with the second connecting hole 3-1-4-2 and the
The 3rd fastening screw 3-1-4-3 is provided with the hole wall of one connecting hole；Connecting rod 3-1-3 with the first connecting screw hole and second by connecting
The hexagonal cylindricality column body segment 3-1- for meeting the thread segment 3-1-3-1 of screw matching and being matched with the first connecting hole and the second connecting hole
3-2 is constituted, the first connecting screw hole 3-1-1-1 or the 3rd driven rod set by the thread segment 3-1-3-1 and the first driven rod of connecting rod
Set second connecting screw hole 3-1-4-1 threaded connections, the column body segment 3-1-3-2 of connecting rod inserts the first company set by the second driven rod
Meet the second connecting hole 3-1-4-1 set by hole 3-1-2-1 or the 3rd driven rod and fixed by trip bolt；Roll wheel assembly 3-2 bags
The quantity for including roller 3-2-1, U-shaped installing plate 3-2-2, wheel shaft 3-2-3 and roller sleeve 3-2-4, roller 3-2-1 is three, U-shaped
Installing plate 3-2-2 and wheel shaft 3-2-3 quantity are identical with the quantity of roller, and each roller 3-2-1 is separately mounted to corresponding wheel shaft
On, each wheel shaft 3-2-3 two ends are separately mounted on corresponding U-shaped installing plate 3-2-2 biside plate, each roller is located at respectively
Between the biside plate of corresponding U-shaped installing plate, roller sleeve 3-2-4 endoporus is more than the transmission of the first driven rod 3-1-1 and second
The second fastening screw 3-2-4-1 is designed with bar 3-1-2 appearance and size and hole wall, each U-shaped installing plate, which is respectively welded, to be fixed on
On roller sleeve 3-2-4 outer wall, U-shaped installing plate be three, the center line of the U-shaped installing plate of two of which point-blank,
The center line of remaining next U-shaped installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；Roll wheel assembly 3-2's
Roller sleeve 3-2-4 is sleeved on transmission bar assembly 3-1 the second driven rod 3-1-2 or the 3rd driven rod 3-1-4 and by tight
Gu screw is fixed.
As shown in figure 1, the assembling process for the acoustic emission sensor that the present embodiment is provided is：First by the first driven rod 3-1-1,
The 3rd driven rod 3-1-4 for being set with roll wheel assembly 3-2 and the second driven rod 3-1-2 for being set with roll wheel assembly sequentially pass through two
Individual connecting rod 3-1-3 links together, by the on the first fastening screw 3-1-2-3 and the 3rd driven rod on the second driven rod
Three fastening screw 3-1-4-3 align with the second fastening screw 3-2-4-1 on two roller sleeves respectively, will using trip bolt
Roll wheel assembly, the second driven rod, connecting rod or roll wheel assembly, the 3rd driven rod, connecting rod are fixed, and are completed two probes and are installed
Transfer member between mechanism is installed；First the first articulated joint of driven rod 3-1- of the transfer member that above-mentioned completion is installed again
1-2 and second the second articulated joint of driven rod 3-1-2-2 are provided with the probe installing mechanism 1 of acoustic emission probe 2 with two respectively
The adapted pin-hinges of articulated joint 1-7-1 of frame shape connector the 3rd together, close to drilling 6 outside probe installing mechanism
Another frame shape connector on the 3rd articulated joint 1-7-1 and another the second articulated joint of second driven rod 3-1-2-2 it is adapted
Pin-hinges together, complete the assembling of acoustic emission sensor.
As shown in Fig. 1, Figure 16 to Figure 18, the use process for the acoustic emission monitoring system that the present embodiment is provided is：Will peace
Probe installing mechanism 1 equipped with acoustic emission probe 2 is put into by transport mechanism 3 in the drilling 6 of monitored rock mass 7, promotes transmission
Mechanism 3, is passed to the position for needing to monitor, then extracts the first position-limitting pin 1-6, under spring 1-4 resilient force,
Guidance set 1-5 and probe sleeve 1-1 are moved in the opposite direction, so that the second cover plate 1-5-1 top surface and probe sleeve
1-1 lower surface is in close contact with borehole wall respectively；The cable 4 being connected with acoustic emission probe 2 extends to earth's surface, and and ground
The computer 4-1 of work station 4 is connected；Acoustic emission probe 2 transmits the monitoring signals received to ground handling station 4 through cable 5
Computer 4-1, and monitoring signals are shown in real time by computer 4-1.Top surface and spy due to the second cover plate 1-5-1
Headgear cylinder 1-1 lower surface is the arc surface being adapted to drilling hole wall-shaped face, thereby may be ensured that sensor and borehole wall
Effective contact, it is ensured that acoustic emission probe receive signal validity and stability.
After monitoring process terminates, the second position-limitting pin 1-8 on spring spool 1-3 is extracted, spring 1-4 is returned to certainly
By state, guidance set 1-5 is separated with the wall of a borehole and is entered spring spool 1-3 under gravity, now, installing mechanism of popping one's head in
Along 6 areas of section of drilling are less than again perpendicular to borehole axial area of section, therefore, it is possible to will be popped one's head in by transmitting bar assembly 3-1
Installing mechanism 1 is pulled out from drilling 6 so that acoustic emission probe 2 and its installing mechanism can be recycled.
Embodiment 2
The acoustic emission monitoring system that the present embodiment is provided, as shown in figure 19, including acoustic emission sensor and ground handling station
4, acoustic emission sensor is used to be arranged in the drilling 6 of monitored rock mass 7, and the monitoring signals received are transmitted by cable 5
To ground handling station 4, the computer 4-1 in ground handling station is handled and given to the monitoring signals from emission sensor
Display；Acoustic emission sensor is passed by acoustic emission probe 2, probe installing mechanism and by the installing mechanism for being provided with acoustic emission probe
The transport mechanism 3 for delivering to setting position in drilling is constituted；The quantity of probe installing mechanism 1 and acoustic emission probe 2 is three.
The probe installing mechanism 1 and the structure of acoustic emission probe 2 that the present embodiment is provided are same as Example 1.
As shown in Fig. 1, Figure 11 to Figure 15, the above-mentioned transport mechanism 3 of transport mechanism 3 is by transmission bar assembly 3-1 and roll wheel assembly
3-2 is combined；Transmitting bar assembly 3-1 includes the first driven rod 3-1-1, the second driven rod 3-1-2 and connecting rod 3-1-3；The
One driven rod 3-1-1 one end is provided with the first articulated joint 3-1-1-2, and other end centre is provided with the first connecting screw hole 3-1-
1-1；Second driven rod 3-1-2 one end is provided with the second articulated joint 3-1-2-2, and other end centre is provided with the first connection
The first fastening screw 3-1-2-3 is provided with the hole wall of hole 3-1-2-1 and the first connecting hole；Connecting rod 3-1-3 with first by connecting
The hexagonal cylindricality column body segment 3-1-3-2 compositions for meeting the thread segment 3-1-3-1 of screw matching and being matched with the first connecting hole, connecting rod
Thread segment 3-1-3-1 be threadedly coupled with the first connecting screw hole 3-1-1-1 set by the first driven rod, the column body segment 3-1- of connecting rod
3-2 inserts the first connecting hole 3-1-2-1 set by the second driven rod and fixed by trip bolt；Roll wheel assembly 3-2 includes roller
3-2-1, U-shaped installing plate 3-2-2, wheel shaft 3-2-3 and roller sleeve 3-2-4, roller 3-2-1 quantity are three, U-shaped installing plate
3-2-2 and wheel shaft 3-2-3 quantity are identical with the quantity of roller, and each roller 3-2-1 is separately mounted on corresponding wheel shaft, each wheel
Axle 3-2-3 two ends are separately mounted on corresponding U-shaped installing plate 3-2-2 biside plate, each roller is located at corresponding U respectively
Between the biside plate of type installing plate, roller sleeve 3-2-4 endoporus is more than the first driven rod 3-1-1 and the second driven rod 3-1-2
Appearance and size and hole wall on be designed with the second fastening screw 3-2-4-1, each U-shaped installing plate, which is respectively welded, is fixed on roller sleeve
On 3-2-4 outer wall, U-shaped installing plate be three, the center line of the U-shaped installing plate of two of which point-blank, remaining next U
The center line of type installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；Roll wheel assembly 3-2 roller sleeve
3-2-4 is sleeved on transmission bar assembly 3-1 the second driven rod 3-1-2 and fixed by trip bolt.
As shown in figure 19, the assembling for the acoustic emission sensor that the present embodiment is provided：The first driven rod 3-1-1 and it will be set with
Roll wheel assembly 3-2 the second driven rod 3-1-2 is linked together by a connecting rod 3-1-3, by the second driven rod
One fastening screw 3-1-2-3 fastens screw 3-2-4-1 with second on roller sleeve and alignd, using trip bolt by roller group
Part, the second driven rod, connecting rod three are fixed, and the transfer member completed between two neighboring probe installing mechanism is installed, foundation
Above-mentioned similar approach, assembles two sets of transfer members altogether；The transfer member for recycling above-mentioned completion to install uses identical in embodiment 1
Mode the probe installing mechanism that three are provided with acoustic emission probe is connected in turn, close to drilling 6 outside probe
3rd articulated joint 1-7-1 and another the second articulated joint of second driven rod 3-1-2- on another frame shape connector of installing mechanism
2 adapted pin-hinges together, complete the assembling of acoustic emission sensor.
The use for the above-mentioned acoustic emission monitoring system that the present embodiment is provided and removal process are same as Example 1.
The transport mechanism 3 with roll wheel assembly 3-2 and connecting rod 3-1-3 is carried out in above-described embodiment 1, embodiment 2
During dismounting, it is only necessary to unscrew the trip bolt on roller sleeve 3-2-4, you can realize the second driven rod 3-1-2 or
3rd driven rod 3-1-4 and roll wheel assembly 3-2 and connecting rod 3-1-3 separation, not only convenient disassembly, and avoid conveyer
The integral-rotation of structure 3, so as to avoid producing excessive friction between probe installing mechanism and drilling, while can also avoid because of transmission
Mechanism integral-rotation and cause between many ropes being connected with position-limitting pin winding mutually and produce maloperation.
In above-described embodiment 1, embodiment 2, as relatively deep, the first driven rod 3-1-1 and/or the second driven rod 3-1-2 of drilling 6
Not enough in use, the 3rd driven rod being connected respectively with the first driven rod 3-1-1 and/or the second driven rod 3-1-2 can be configured
3-1-4；Connected between first driven rod 3-1-1, the second driven rod 3-1-2 and the 3rd driven rod 3-1-4 by connecting rod 3-1-3
Connect.
, can be according to brill close to the other end of the probe installing mechanism in the outside of drilling 6 in above-described embodiment 1, embodiment 2
The depth in hole, is reconfigured at being made up of the first driven rod 3-1-1 and/or the second driven rod 3-1-2 and/or the 3rd driven rod 3-1-4
Transmission bar assembly 3-1 and roll wheel assembly 3-2, to control entrance depth of the acoustic emission sensor in drilling.
Welding attachment in above-described embodiment 1, embodiment 2, can also be solidified by bolt attachment, integral type
Other attachments such as shaping are substituted；Screw attachment, can also be removably fixed with by the way that buckle, magnetic coupling etc. are other
Mode is substituted.
Claims (6)
1. a kind of acoustic emission monitoring system, including acoustic emission sensor and ground handling station (4), the acoustic emission sensor are used for
In the drilling of monitored rock mass, the monitoring signals received are transmitted to ground handling station, ground work by cable (5)
Computer (4-1) in standing is handled and shown to the monitoring signals from emission sensor, it is characterised in that institute
Acoustic emission sensor is stated by acoustic emission probe (2), probe installing mechanism (1) and the probe fitting machine that acoustic emission probe will be provided with
Structure is sent to transport mechanism (3) composition of setting position in drilling, and the quantity of acoustic emission probe (2) is at least one, probe peace
The quantity of mounting mechanism (1) is identical with the quantity of acoustic emission probe；
The probe installing mechanism (1) includes probe sleeve (1-1), end cap (1-2), spring spool (1-3), spring (1-4), led
To component (1-5) and frame shape connector (1-7)；The probe sleeve (1-1) is lower end closed, the cylinder of upper end open, probe
The endoporus of sleeve coordinates with acoustic emission probe (2) for gap, and the lower surface of probe sleeve is the drilling radian with monitored rock mass
The arc surface of matching, upper end barrel is provided with one or two notch (1-1-1) stretched out for the cable connector of acoustic emission probe,
If two notches, two notches are axisymmetricly distributed relative to the center line of probe sleeve；The end cap (1-2) is by the first cover plate
The connector (1-2-2) that (1-2-1) and the first cover plate top surface are set is constituted, on the first cover plate (1-2-1) and probe sleeve (1-1)
The shape and size matching of end face, connector (1-2-2) is provided with the first via (1- passed through for the first position-limitting pin (1-6)
2-3)；The spring spool (1-3) is the cylinder of both ends open and lower end is provided with the second position-limitting pin (1-8), spring spool
(1-3) quantity is two, and two spring spools are axisymmetricly fixed on probe sleeve outer wall relative to the center line of probe sleeve, and
The center line of line and the notch (1-1-1) that the center line of two spring spools is projected in horizontal plane hangs down in the projection of horizontal plane
Directly；The guidance set (1-5) is made up of the second cover plate (1-5-1) and two guide rods (1-5-2), the second cover plate (1-5-1)
Top surface is that the arc surface that is matched with the drilling radian of monitored rock mass, bottom surface are plane, and the second cover plate (1-5-1) centre is set
It is equipped with the centre bore matched with cap connections (1-2-2) shape and size, the hole wall of the centre bore is provided with spacing for first
The second via (1-5-3) that pin (1-6) is passed through, two guide rods are axisymmetricly fixed on relative to the center line of the second cover plate
The spacing phase between spacing and two spring spool (1-3) center lines between second cover plate bottom surface, two guide rod center lines
Together；The quantity of the frame shape connector (1-7) is one or two, frame shape connector and notch (1-1-1) set by probe sleeve
The outer wall at place is connected and communicated with notch；
Acoustic emission probe (2) is arranged in probe sleeve (1-1), the groove that its cable connector (2-1) is set from probe sleeve barrel
Mouth (1-1-1) protrudes into frame shape connector (1-7), and the first cover plate (1-2-1) of end cap is covered in probe sleeve (1-1) upper end
Face and be detachable connection with probe sleeve, the quantity of the spring (1-4) is two, and two springs (1-4) are respectively charged into
In two spring spools (1-3), its lower end is spacing by the second position-limitting pin (1-8) installed, two guide rods of guidance set
(1-5-2) is combined with two springs (1-4) respectively, and the second cover plate (1-5-1) of guidance set is sleeved on end cap (1-2) and led to
Crossing the first position-limitting pin (1-6) and being connected with end cap (1-2) makes spring (1-4) be in compressive state, and transport mechanism (3) connects with frame shape
Junctor (1-7) or probe sleeve (1-1) are hinged, and first position-limitting pin (1-6) and the second position-limitting pin (1-8) are respectively connected with
Rope.
2. acoustic emission monitoring system according to claim 1, it is characterised in that the transport mechanism (3) is by transmission bar assembly
(3-1) and roll wheel assembly (3-2) are combined；
The transmission bar assembly (3-1) includes the first driven rod (3-1-1), the second driven rod (3-1-2) and connecting rod (3-1-
3), one end of first driven rod (3-1-1) is provided with the first articulated joint (3-1-1-2), and other end centre is provided with the
One connecting screw hole (3-1-1-1), one end of second driven rod (3-1-2) is provided with the second articulated joint (3-1-2-2), another
End centre, which is provided with the first connecting hole (3-1-2-1) and the hole wall of the first connecting hole, is provided with the first fastening screw (3-
1-2-3), the connecting rod (3-1-3) by the thread segment (3-1-3-1) that is matched with the first connecting screw hole and with the first connecting hole
Column body segment (3-1-3-2) composition matched somebody with somebody, the thread segment (3-1-3-1) of connecting rod and the first connecting screw hole set by the first driven rod
(3-1-1-1) is threadedly coupled, and the column body segment (3-1-3-2) of connecting rod inserts the first connecting hole (3-1-2- set by the second driven rod
1) and by trip bolt fix；
The roll wheel assembly (3-2) includes roller (3-2-1), U-shaped installing plate (3-2-2), wheel shaft (3-2-3) and roller sleeve
(3-2-4), the quantity of roller (3-2-1) is two or three, quantity and the rolling of U-shaped installing plate (3-2-2) and wheel shaft (3-2-3)
The quantity of wheel is identical, and each roller (3-2-1) is separately mounted on corresponding wheel shaft, and the two ends of each wheel shaft (3-2-3) are respectively mounted
On the biside plate of corresponding U-shaped installing plate (3-2-2), make each roller be located at respectively corresponding U-shaped installing plate biside plate it
Between, the endoporus of roller sleeve (3-2-4) be more than the appearance and size of the first driven rod (3-1-1) and the second driven rod (3-1-2) and
The second fastening screw (3-2-4-1) is designed with hole wall, each U-shaped installing plate is respectively fixedly connected in roller sleeve (3-2-4) outer wall
On, when U-shaped installing plate is two, the angle between two U-shaped installing plate center lines is 120 °~135 °, when U-shaped installing plate
For three when, the center line of the U-shaped installing plate of two of which point-blank, the center line of remaining next U-shaped installing plate with it is upper
The angle for stating two U-shaped installing plate center lines is 90 °；
The roller sleeve (3-2-4) of roll wheel assembly (3-2) is sleeved on the second driven rod (3-1-2) of transmission bar assembly (3-1)
And fixed by trip bolt.
3. acoustic emission monitoring system according to claim 2, it is characterised in that the transport mechanism (3) also includes the 3rd transmission
Bar (3-1-4), one end centre of the 3rd driven rod is provided with the second connecting screw hole (3-1-4-1), and other end centre is set
There is the second connecting hole (3-1-4-2), second connecting screw hole (3-1-4-1) matches with the thread segment (3-1-3-1) of connecting rod,
Second connecting hole (3-1-4-2) matches with the column body segment (3-1-3-2) of connecting rod and the 3rd fastening spiral shell is provided with hole wall
Hole (3-1-4-3)；
The quantity of 3rd driven rod (3-1-4) is at least one, is located at when using between the first driven rod and the second driven rod, leads to
Cross the combination of connecting rod realization and the combination and the 3rd driven rod of the first driven rod and the second connecting rod each other, the 3rd transmission
At least one set roll wheel assembly is can configure on bar.
4. the acoustic emission monitoring system according to any claim in claims 1 to 3, it is characterised in that the probe sleeve
The notch (1-1-1) that the confession acoustic emission probe cable connector that upper end barrel is set stretches out is U-type groove mouthful.
5. the acoustic emission monitoring system according to any claim in claims 1 to 3, it is characterised in that the sound emission is visited
Head (2) is coated with couplant with the lower surface that probe sleeve bottom is contacted.
6. acoustic emission monitoring system according to claim 4, it is characterised in that the acoustic emission probe (2) and probe sleeve bottom
The lower surface of portion's contact is coated with couplant.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108799846A (en) * | 2018-07-06 | 2018-11-13 | 中国核动力研究设计院 | A kind of nuclear power station pressure pipeline acoustic emission detection device and method |
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| CN107063144B (en) | 2019-07-30 |
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